Monitoring of Bridge Displacement with Image Correlation Method
| Project/Area Number |
23560578
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Tokyo Denki University |
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Principal Investigator |
NIITSU Yasushi 東京電機大学, 情報環境学部, 教授 (70143659)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 橋梁 / 変位計測 / モニタリング / 画像処理 / 画像相関 |
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| Research Abstract |
The real-time displacement measuring system with digital image correlation method was developed and the displacements of three road-bridges and a railway-bridge were measured under traffic loaded state. The 2D movement of 32x32 partial image could be traced with better than 0.05-pixel resolution by image correlation method. The displacement measurement of the bridge was carried out at the interval of 50 times in a second. In the measured bridge selection, Sakae-Bridge was chosen as a big sample and one small bridge as a small one. The high-speed camera with 1280x1024x8bits resolution power was used in the measurement. The displacement of bridges coursed by the traffic load could be detected with enough resolution power.
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Report
(4 results)
Research Products
(35 results)
